From 829ceb28215a1b6178bf690182def5ad56842f49 Mon Sep 17 00:00:00 2001 From: Eugeniu Rosca Date: Mon, 8 Apr 2019 17:35:27 +0200 Subject: image: android: allow booting lz4-compressed kernels According to Android image format [1], kernel image resides at 1 page offset from the boot image address. Grab the magic number from there and allow U-Boot to handle LZ4-compressed KNL binaries instead of hardcoding compression type to IH_COMP_NONE. Other compression types, if needed, can be added later. Tested on H3ULCB-KF using the image detailed in [2]. [1] Excerpt from include/android_image.h +-----------------+ | boot header | 1 page +-----------------+ | kernel | n pages +-----------------+ | ramdisk | m pages +-----------------+ | second stage | o pages +-----------------+ [2] => iminfo 4c000000 ## Checking Image at 4c000000 ... Android image found kernel size: 85b9d1 kernel address: 48080000 ramdisk size: 54ddbc ramdisk addrress: 4a180000 second size: 0 second address: 48000800 tags address: 48000100 page size: 800 os_version: 1200012a (ver: 0.9.0, level: 2018.10) name: cmdline: buildvariant=userdebug Signed-off-by: Eugeniu Rosca --- lib/lz4_wrapper.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'lib') diff --git a/lib/lz4_wrapper.c b/lib/lz4_wrapper.c index 487d39ef02..1c68e67452 100644 --- a/lib/lz4_wrapper.c +++ b/lib/lz4_wrapper.c @@ -5,6 +5,7 @@ #include #include +#include #include #include @@ -23,8 +24,6 @@ typedef uint64_t U64; /* Unaltered (except removing unrelated code) from github.com/Cyan4973/lz4. */ #include "lz4.c" /* #include for inlining, do not link! */ -#define LZ4F_MAGIC 0x184D2204 - struct lz4_frame_header { u32 magic; union { -- cgit